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include <imhdr.h>
include <pmset.h>
include "icombine.h"
include "icmask.h"
# IC_MASK -- ICOMBINE mask interface
#
# IC_MOPEN -- Open masks
# IC_MCLOSE -- Close the mask interface
# IC_MGET -- Get lines of mask pixels for all the images
# IC_MGET1 -- Get a line of mask pixels for the specified image
# IC_MOPEN -- Open masks.
# Parse and interpret the mask selection parameters.
procedure ic_mopen (in, out, nimages)
pointer in[nimages] #I Input images
pointer out[ARB] #I Output images
int nimages #I Number of images
int mtype # Mask type
int mvalue # Mask value
pointer bufs # Pointer to data line buffers
pointer pms # Pointer to array of PMIO pointers
int i, npix, npms, clgwrd()
real clgetr()
pointer sp, fname, title, pm, pm_open()
bool invert, pm_empty()
errchk calloc, pm_open, pm_loadf
include "icombine.com"
begin
icm = NULL
if (IM_NDIM(out[1]) == 0)
return
call smark (sp)
call salloc (fname, SZ_FNAME, TY_CHAR)
call salloc (title, SZ_FNAME, TY_CHAR)
# Determine the mask parameters and allocate memory.
# The mask buffers are initialize to all excluded so that
# output points outside the input data are always excluded
# and don't need to be set on a line-by-line basis.
mtype = clgwrd ("masktype", Memc[title], SZ_FNAME, MASKTYPES)
mvalue = clgetr ("maskvalue")
npix = IM_LEN(out[1],1)
call calloc (pms, nimages, TY_POINTER)
call calloc (bufs, nimages, TY_POINTER)
do i = 1, nimages {
call malloc (Memi[bufs+i-1], npix, TY_INT)
call amovki (1, Memi[Memi[bufs+i-1]], npix)
}
# Check for special cases. The BOOLEAN type is used when only
# zero and nonzero are significant; i.e. the actual mask values are
# not important. The invert flag is used to indicate that
# empty masks are all bad rather the all good.
if (mtype == 0)
mtype = M_NONE
if (mtype == M_BADBITS && mvalue == 0)
mtype = M_NONE
if (mvalue == 0 && (mtype == M_GOODVAL || mtype == M_GOODBITS))
mtype = M_BOOLEAN
if ((mtype == M_BADVAL && mvalue == 0) ||
(mtype == M_GOODVAL && mvalue != 0) ||
(mtype == M_GOODBITS && mvalue == 0))
invert = true
else
invert = false
# If mask images are to be used, get the mask name from the image
# header and open it saving the descriptor in the pms array.
# Empty masks (all good) are treated as if there was no mask image.
npms = 0
do i = 1, nimages {
if (mtype != M_NONE) {
ifnoerr (call imgstr (in[i], "BPM", Memc[fname], SZ_FNAME)) {
pm = pm_open (NULL)
call pm_loadf (pm, Memc[fname], Memc[title], SZ_FNAME)
call pm_seti (pm, P_REFIM, in[i])
if (pm_empty (pm) && !invert)
call pm_close (pm)
else {
if (project) {
npms = nimages
call amovki (pm, Memi[pms], nimages)
} else {
npms = npms + 1
Memi[pms+i-1] = pm
}
}
if (project)
break
}
}
}
# If no mask images are found and the mask parameters imply that
# good values are 0 then use the special case of no masks.
if (npms == 0) {
if (!invert)
mtype = M_NONE
}
# Set up mask structure.
call calloc (icm, ICM_LEN, TY_STRUCT)
ICM_TYPE(icm) = mtype
ICM_VALUE(icm) = mvalue
ICM_BUFS(icm) = bufs
ICM_PMS(icm) = pms
call sfree (sp)
end
# IC_MCLOSE -- Close the mask interface.
procedure ic_mclose (nimages)
int nimages # Number of images
int i
include "icombine.com"
begin
if (icm == NULL)
return
do i = 1, nimages
call mfree (Memi[ICM_BUFS(icm)+i-1], TY_INT)
do i = 1, nimages {
if (Memi[ICM_PMS(icm)+i-1] != NULL)
call pm_close (Memi[ICM_PMS(icm)+i-1])
if (project)
break
}
call mfree (ICM_BUFS(icm), TY_POINTER)
call mfree (ICM_PMS(icm), TY_POINTER)
call mfree (icm, TY_STRUCT)
end
# IC_MGET -- Get lines of mask pixels in the output coordinate system.
# This converts the mask format to an array where zero is good and nonzero
# is bad. This has special cases for optimization.
procedure ic_mget (in, out, offsets, v1, v2, m, lflag, nimages)
pointer in[nimages] # Input image pointers
pointer out[ARB] # Output image pointer
int offsets[nimages,ARB] # Offsets to output image
long v1[IM_MAXDIM] # Data vector desired in output image
long v2[IM_MAXDIM] # Data vector in input image
pointer m[nimages] # Pointer to mask pointers
int lflag[nimages] # Line flags
int nimages # Number of images
int mtype # Mask type
int mvalue # Mask value
pointer bufs # Pointer to data line buffers
pointer pms # Pointer to array of PMIO pointers
int i, j, ndim, nout, npix
pointer buf, pm
bool pm_linenotempty()
errchk pm_glpi
include "icombine.com"
begin
# Determine if masks are needed at all. Note that the threshold
# is applied by simulating mask values so the mask pointers have to
# be set.
dflag = D_ALL
if (icm == NULL)
return
if (ICM_TYPE(icm) == M_NONE && aligned && !dothresh)
return
mtype = ICM_TYPE(icm)
mvalue = ICM_VALUE(icm)
bufs = ICM_BUFS(icm)
pms = ICM_PMS(icm)
# Set the mask pointers and line flags and apply offsets if needed.
ndim = IM_NDIM(out[1])
nout = IM_LEN(out[1],1)
do i = 1, nimages {
npix = IM_LEN(in[i],1)
j = offsets[i,1]
m[i] = Memi[bufs+i-1]
buf = Memi[bufs+i-1] + j
pm = Memi[pms+i-1]
if (npix == nout)
lflag[i] = D_ALL
else
lflag[i] = D_MIX
v2[1] = v1[1]
do j = 2, ndim {
v2[j] = v1[j] - offsets[i,j]
if (v2[j] < 1 || v2[j] > IM_LEN(in[i],j)) {
lflag[i] = D_NONE
break
}
}
if (project)
v2[ndim+1] = i
if (lflag[i] == D_NONE)
next
if (pm == NULL) {
call aclri (Memi[buf], npix)
next
}
# Do mask I/O and convert to appropriate values in order of
# expected usage.
if (pm_linenotempty (pm, v2)) {
call pm_glpi (pm, v2, Memi[buf], 32, npix, 0)
if (mtype == M_BOOLEAN)
;
else if (mtype == M_BADBITS)
call aandki (Memi[buf], mvalue, Memi[buf], npix)
else if (mtype == M_BADVAL)
call abeqki (Memi[buf], mvalue, Memi[buf], npix)
else if (mtype == M_GOODBITS) {
call aandki (Memi[buf], mvalue, Memi[buf], npix)
call abeqki (Memi[buf], 0, Memi[buf], npix)
} else if (mtype == M_GOODVAL)
call abneki (Memi[buf], mvalue, Memi[buf], npix)
lflag[i] = D_NONE
do j = 1, npix
if (Memi[buf+j-1] == 0) {
lflag[i] = D_MIX
break
}
} else {
if (mtype == M_BOOLEAN || mtype == M_BADBITS) {
call aclri (Memi[buf], npix)
} else if ((mtype == M_BADVAL && mvalue != 0) ||
(mtype == M_GOODVAL && mvalue == 0)) {
call aclri (Memi[buf], npix)
} else {
call amovki (1, Memi[buf], npix)
lflag[i] = D_NONE
}
}
}
# Set overall data flag
dflag = lflag[1]
do i = 2, nimages {
if (lflag[i] != dflag) {
dflag = D_MIX
break
}
}
end
# IC_MGET1 -- Get line of mask pixels from a specified image.
# This is used by the IC_STAT procedure. This procedure converts the
# stored mask format to an array where zero is good and nonzero is bad.
# The data vector and returned mask array are in the input image pixel system.
procedure ic_mget1 (in, image, offset, v, m)
pointer in # Input image pointer
int image # Image index
int offset # Column offset
long v[IM_MAXDIM] # Data vector desired
pointer m # Pointer to mask
int mtype # Mask type
int mvalue # Mask value
pointer bufs # Pointer to data line buffers
pointer pms # Pointer to array of PMIO pointers
int i, npix
pointer buf, pm
bool pm_linenotempty()
errchk pm_glpi
include "icombine.com"
begin
dflag = D_ALL
if (icm == NULL)
return
if (ICM_TYPE(icm) == M_NONE)
return
mtype = ICM_TYPE(icm)
mvalue = ICM_VALUE(icm)
bufs = ICM_BUFS(icm)
pms = ICM_PMS(icm)
npix = IM_LEN(in,1)
m = Memi[bufs+image-1] + offset
pm = Memi[pms+image-1]
if (pm == NULL)
return
# Do mask I/O and convert to appropriate values in order of
# expected usage.
buf = m
if (pm_linenotempty (pm, v)) {
call pm_glpi (pm, v, Memi[buf], 32, npix, 0)
if (mtype == M_BOOLEAN)
;
else if (mtype == M_BADBITS)
call aandki (Memi[buf], mvalue, Memi[buf], npix)
else if (mtype == M_BADVAL)
call abeqki (Memi[buf], mvalue, Memi[buf], npix)
else if (mtype == M_GOODBITS) {
call aandki (Memi[buf], mvalue, Memi[buf], npix)
call abeqki (Memi[buf], 0, Memi[buf], npix)
} else if (mtype == M_GOODVAL)
call abneki (Memi[buf], mvalue, Memi[buf], npix)
dflag = D_NONE
do i = 1, npix
if (Memi[buf+i-1] == 0) {
dflag = D_MIX
break
}
} else {
if (mtype == M_BOOLEAN || mtype == M_BADBITS) {
;
} else if ((mtype == M_BADVAL && mvalue != 0) ||
(mtype == M_GOODVAL && mvalue == 0)) {
;
} else
dflag = D_NONE
}
end
|
